Physics – Atomic and Molecular Clusters
Scientific paper
2006-08-08
J. Chem. Phys. 117(2), 647-652 (2002)
Physics
Atomic and Molecular Clusters
Scientific paper
10.1063/1.1484104
An effusive pyrolysis source is described for generating a continuous beam of radicals under conditions appropriate for the helium droplet pick-up method. Rotationally resolved spectra are reported for the $\nu_1$ vibrational mode of the propargyl radical in helium droplets at 3322.15 cm$^{-1}$. Stark spectra are also recorded that allow for the first experimental determination of the permanent electric dipole moment of propargyl, namely -0.150 D and -0.148 D for ground and excited state, respectively, in good agreement with previously reported ab initio results of -0.14 D [1]. The infrared spectrum of the $\nu_1$ mode of propargyl-bromide is also reported. The future application of these methods for the production of novel radical clusters is discussed.
Küpper Jochen
Merritt Jeremy M.
Miller Roger E.
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